(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Leonard wants to know how fast he can throw a ball, so he hangs a 2.3 kg target on a rope from a tree. He picks up a 0.5 kg ball of clay and throws it horizontally against the target. The clay sticks to the target and the clay and the target swing up to a height of 1.5m above the initial position. How fast did Leonard throw the ball of clay?

2. Relevant equations

KE+PE = KE+PE

3. The attempt at a solution

I drew it out and thought this equation might work, but i don't think it's right for many reasons.

1/2*.5kg*v^(2)=2.8kg*9.8*1.5m

v=12.8 m/s

unrealistically high velocity.

There's no way for me to check this answer, so can someone tell me if this is right?

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# Inelastic Collision or Conversation of Energy?

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